The Global Sea Level Observing System (GLOSS)

Merrifield, M. A.; Aarup, Thorkild; Allen, Ann Taylor; Aman, Angora; Bradshaw, Elizabeth; Caldwell, Peter C.; Fernandes, Rui; Hayashibara, H.; Hernández, F.; Kilonsky, Bernard; Míguez, Belén Martín; Mitchum, Gary T.; Gómez, Begoña Pérez; Rickards, Lesley; Rosen, D.; Schöne, Tilo; Szabados, M.; Testut, Laurent; Woodworth, Philip; Wöppelmann, Guy; Zavala, Jobany Cañas

doi:10.5270/oceanobs09.cwp.63

Cited by 42 publications

(41 citation statements)

References 7 publications

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“…Woodworth 2006;Marcos and Tsimplis 2007a;Church and White 2011). In line with this interest, the Marseille tide gauge has been committed to the core network of stations of the Global Sea Level Observing System (GLOSS) since its inception in 1985 (Merrifield et al 2010). It has also been contributing data to the Permanent Service for Mean Sea Level (PSMSL; Holgate et al 2013).…”

Section: Introductionmentioning

confidence: 99%

Rescue of the historical sea level record of Marseille (France) from 1885 to 1988 and its extension back to 1849–1851

Wöppelmann

Marcos

Coulomb

et al. 2014

J Geod

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This paper describes the historical sea level data that we have rescued from a tide gauge, especially devised originally for geodesy. This gauge was installed in Marseille in 1884 with the primary objective of defining the origin of the height system in France. Hourly values for have been digitized from the original tidal charts. They are supplemented by hourly values from an older tide gauge record (1849-1851) that was rediscovered during a survey in 2009. Both recovered data sets have been critically edited for errors and their reliability assessed. The hourly values are thoroughly analysed for the first time after their original recording. A consistent high-frequency time series is reported, increasing notably the length of one of the few European sea level records in the Mediterranean Sea spanning more than one hundred years. Changes in sea levels are examined, and previous results revisited with the extended time series. The rate of relative sea level change for the period 1849-2012 is estimated to have been 1.08 ± 0.04 mm/year at Marseille, a value that is slightly lower but in close agreement with the longest time series of Brest over the common period (1.26 ± 0.04 mm/year). The data from a permanent global positioning system station installed on the roof of the solid tide gauge building suggests a remarkable stability of the ground (−0.04 ± 0.25 mm/year) since 1998, confirming the choice made by our predecessor geodesists in the nineteenth century regarding this site selection.

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Section: Introductionmentioning

confidence: 99%

Rescue of the historical sea level record of Marseille (France) from 1885 to 1988 and its extension back to 1849–1851

Wöppelmann

Marcos

Coulomb

et al. 2014

J Geod

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“…'Abstract space [is] the space of post-war capitalism' [37]. Representational spaces serve as abstract space as conceived through the relation of ideology, power and knowledge [38]. Lefebvre inserts that the predicament of space and that of the lived experience is that it gets "crushed" and "vanquished" by abstract space [39].…”

Section: Section 4: Augmented Reality Applicationsmentioning

confidence: 99%

Pixels, bits and urban space: Observing the intersection of the space of information with urban space in augmented reality smartphone applications and peripheral vision displays

Drakopoulou¹

2013

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Today the urban environment can be seen as a mix of technically mediated elements and actual physical locations -the city is techno-synthetically composed. The method of observing the production of space, as asserted by Lefebvre, must take into account physical and non-physical spaces, produced out of the coexistence of everyday life and activities with the space of information. This paper explores the merging of bits and bytes with the urban environment and uses augmented reality applications for the smartphone and peripheral vision displays as case studies to illustrate how the method of visually layering digital graphics on to the image of actual space produces a new kind of spatial commodification. ContentsIntroduction: The urban environment as techno-synthetically composed Section 1: Lefebvre's triad Section 2: Spatial theories, '90s and '00s Section 3: Locative media, history, maps and urban screens Section 4: Augmented reality applications Section 5. Peripheral vision displays Conclusion Introduction: The urban environment as techno-synthetically composedToday, the merging of physical space with the digital world of information creates a new urban environment that is techno-synthetically composed. The smartphone makes use of a combination of networks, radio frequencies, stationary data processors, fixed antennas, satellites and software. All these technologies combined allow the smartphone and its applications to deliver and transmit data. Therefore, the urban environment can be thought to coexist with digital data sent and received between people, devices and systems. The world of data and its technical infrastructures (physical and nonphysical) can be thought of as a space in which communication between devices and data takes place. Places are enriched with electronic information because data are now accessible at anytime and anywhere, given a portable data processing device. Furthermore, QR codes are placed in numerous places in the city creating 'hot spots' that offer information about specific locations. The urban environment is redefined -the urban environment is changing not only in its appearance but in the way it is used, accessed and lived by its inhabitants.During the '00s, and in literature of locative media and location-based games, Lefebvre's triad appears as a relevant theme in the discussion of spatial perception through the use of locative and wireless technologies [1]. Lefebvre's theory of the production of space becomes relevant during this time precisely because it sets out a method with which to investigate the production of space within the urban environment, as the use of the space of information increases and becomes part of the rhythms of everyday life. It offers the framework in which to investigate the newly found relationship between the urban environment and the space of electronic information, and thus investigate how space itself is changing. The space of information intersects with everyday rhythms and becomes an integral part of the lived experience. Just as Lefebvre asser...

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“…GLOSS (Global Sea Level Observing System) has sought to provide water level data that meets the requirements of both the tsunami and the storm surge community [21], with more data now available in nearreal time, e.g. 166 of the GLOSS Global Core Network stations as opposed to 72 a decade earlier.…”

Section: Figure 4 Annual Average Errors In Track (Upper) and Intensimentioning

confidence: 99%

Storm Surge

Swail¹,

Swail²,

Swail³

et al. 2010

Proceedings of OceanObs'09: Sustained Ocean Observations and Information for Society

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The Global Sea Level Observing System (GLOSS)

Cited by 42 publications

References 7 publications

Rescue of the historical sea level record of Marseille (France) from 1885 to 1988 and its extension back to 1849–1851

Rescue of the historical sea level record of Marseille (France) from 1885 to 1988 and its extension back to 1849–1851

Pixels, bits and urban space: Observing the intersection of the space of information with urban space in augmented reality smartphone applications and peripheral vision displays

Storm Surge

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